149
by mbp at sourcefrog
experiment with new nested inventory file format |
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# (C) 2005 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from cElementTree import Element, ElementTree, SubElement |
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def write_inventory(inv, f): |
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el = Element('inventory', {'version': '2'}) |
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root = Element('root_directory', {'id': 'bogus-root-id'}) |
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el.append(root) |
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def descend(parent_el, ie): |
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kind = ie.kind |
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el = Element(kind, {'name': ie.name, |
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'id': ie.file_id,}) |
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if kind == 'file': |
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if ie.text_id: |
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el.set('text_id', ie.text_id) |
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if ie.text_sha1: |
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el.set('text_sha1', ie.text_sha1) |
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if ie.text_size != None: |
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el.set('text_size', ('%d' % ie.text_size)) |
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elif kind != 'directory': |
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bailout('unknown InventoryEntry kind %r' % kind) |
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150
by mbp at sourcefrog
experiment in writing XML by hand, not through ElementTree |
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el.tail = '\n' |
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149
by mbp at sourcefrog
experiment with new nested inventory file format |
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parent_el.append(el) |
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if kind == 'directory': |
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l = ie.children.items() |
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l.sort() |
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for child_name, child_ie in l: |
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descend(el, child_ie) |
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# walk down through inventory, adding all directories
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l = inv._root.children.items() |
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l.sort() |
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for entry_name, ie in l: |
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descend(root, ie) |
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ElementTree(el).write(f, 'utf-8') |
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f.write('\n') |
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150
by mbp at sourcefrog
experiment in writing XML by hand, not through ElementTree |
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def write_slacker_inventory(inv, f): |
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def descend(ie): |
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kind = ie.kind |
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f.write('<%s name="%s" id="%s" ' % (kind, ie.name, ie.file_id)) |
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if kind == 'file': |
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if ie.text_id: |
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f.write('text_id="%s" ' % ie.text_id) |
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if ie.text_sha1: |
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f.write('text_sha1="%s" ' % ie.text_sha1) |
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if ie.text_size != None: |
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f.write('text_size="%d" ' % ie.text_size) |
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f.write('/>\n') |
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elif kind == 'directory': |
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f.write('>\n') |
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l = ie.children.items() |
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l.sort() |
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for child_name, child_ie in l: |
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descend(child_ie) |
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f.write('</directory>\n') |
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else: |
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bailout('unknown InventoryEntry kind %r' % kind) |
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f.write('<inventory>\n') |
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f.write('<root_directory id="bogus-root-id">\n') |
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l = inv._root.children.items() |
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l.sort() |
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for entry_name, ie in l: |
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descend(ie) |
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||
151
by mbp at sourcefrog
experimental nested-inventory load support |
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f.write('</root_directory>\n') |
150
by mbp at sourcefrog
experiment in writing XML by hand, not through ElementTree |
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f.write('</inventory>\n') |
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151
by mbp at sourcefrog
experimental nested-inventory load support |
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def read_new_inventory(f): |
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from inventory import Inventory, InventoryEntry |
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def descend(parent_ie, el): |
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kind = el.tag |
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name = el.get('name') |
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file_id = el.get('id') |
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ie = InventoryEntry(file_id, name, el.tag) |
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parent_ie.children[name] = ie |
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inv._byid[file_id] = ie |
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if kind == 'directory': |
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for child_el in el: |
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descend(ie, child_el) |
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elif kind == 'file': |
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assert len(el) == 0 |
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ie.text_id = el.get('text_id') |
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v = el.get('text_size') |
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ie.text_size = v and int(v) |
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ie.text_sha1 = el.get('text_sha1') |
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else: |
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bailout("unknown inventory entry %r" % kind) |
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inv_el = ElementTree().parse(f) |
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assert inv_el.tag == 'inventory' |
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root_el = inv_el[0] |
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assert root_el.tag == 'root_directory' |
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inv = Inventory() |
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for el in root_el: |
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descend(inv._root, el) |